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https://www.readbyqxmd.com/read/28626137/novel-palm-fatty-acid-functionalized-magnetite-nanoparticles-for-magnetic-solid-phase-extraction-of-trace-polycyclic-aromatic-hydrocarbons-from-environmental-samples
#1
Siti Khalijah Mahmad Rozi, Hamid Rashidi Nodeh, Muhammad Afzal Kamboh, Ninie Suhana Abdul Manan, Sharifah Mohamad
A novel adsorbent, palm fatty acid coated magnetic Fe3O4 nanoparticles (MNP-FA) was successfully synthesized with immobilization of the palm fatty acid onto the surface of MNPs. The successful synthesis of MNP-FA was further confirmed by X-Ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) and Energy dispersive X-Ray spectroscopy (EDX) analyses and water contact angle (WCA) measurement. This newly synthesized MNP-FA was applied as magnetic solid phase extraction (MSPE) adsorbent for the enrichment of polycyclic aromatic hydrocarbons (PAHs), namely fluoranthene (FLT), pyrene (Pyr), chrysene (Cry) and benzo(a)pyrene (BaP) from environmental samples prior to High Performance Liquid Chromatography- Diode Array Detector (HPLC-DAD) analysis...
June 13, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28619020/medical-students-can-teach-communication-skills-a-mixed-methods-study-of-cross-year-peer-tutoring
#2
Osamu Nomura, Hirotaka Onishi, Hiroyuki Kato
BACKGROUND: Cross-year peer tutoring (CYPT) of medical students is recognized as an effective learning tool. The aim of this study is to investigate the non-inferiority of the objective outcome of medical interview training with CYPT compared with the results of faculty-led training (FLT), and to explore qualitatively the educational benefits of CYPT. METHODS: We conducted a convergent mixed methods study including a randomized controlled non-inferiority trial and two focus groups...
June 15, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28612546/-quality-control-and-biological-assessment-of-automated-synthesized-3-deoxy-3-%C3%A2-%C3%A2-f-fluorothymidine-using-cfn-mps-200-module
#3
Xiao Jiang, Xiao-Xiong Wang, Hao Lu, Shi-Rong Chen, Ding-Qiong Xiao, Meng Zhao, Xiu-Li Li, Ge Zhang, Guo-Hui Xu, Zhu-Zhong Cheng
OBJECTIVES: To synthesize 3'-deoxy-3'-¹⁸F-fluorotyhymidine)(¹⁸F-FLT) using CFN-MPS-200 automatic synthesis module, and evaluate its distribution in Wistar rats. METHODS: We used 3-N-Boc-5!d-O-dimethoxytrityl-3!d-O-nosyl-thymidine (Boc-FLT)-percursor as raw material to synthesize ¹⁸F-FLT without residual solvents. Its radiochemical purity was confirmed with radio-HPLC and thin layer chromatography (TLC). Normal Wistar rats were injected with (18) F-FLT and underwent PET scanning...
March 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28609172/placental-expression-of-sflt-1-and-plgf-in-early-preeclampsia-vs-early-iugr-vs-age-matched-healthy-pregnancies
#4
Alice Hoeller, Laura Ehrlich, Michaela Golic, Florian Herse, Frank H Perschel, Monika Siwetz, Wolfgang Henrich, Ralf Dechend, Berthold Huppertz, Stefan Verlohren
OBJECTIVE: To investigate whether differences between early preeclampsia and early fetal growth restriction can be explained by differential placental expression patterns of sFlt-1, Flt-1, and PlGF. METHODS: Placental tissues and maternal blood samples from six cases of preeclampsia, seven IUGR, and six age-matched controls were studied for mRNA and protein levels as well as protein localization and expression intensity. RESULTS: Neither placental PlGF mRNA and protein expression nor placental villous trophoblast expression intensity of PlGF was altered by placental dysfunction...
May 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28602865/anti-angiogenic-activity-of-water-extract-from-euphorbia-pekinensis-rupr
#5
Wenting Zhang, Bin Liu, Yaru Feng, Jie Liu, Zhiqiang Ma, Jian Zheng, Qing Xia, Yuanyuan Ni, Farong Li, Ruichao Lin
ETHNOPHARMACOLOGICAL RELEVANCE: Euphorbia pekinensis Rupr. (EP) is a Euphorbia species of Euphorbiaceae, which is widely used in traditional Chinese medicine. It has been reported to exhibit therapeutic effects on solid tumors, leukemias, and malignant ascites although underlying molecular mechanisms are poorly delineated. Anti-angiogenic therapy is a recognized strategy for treating cancer-based solid tumors, and is also associated with malignant ascites treatment. STUDY AIM: To study the anti-angiogenic properties of the water extract of EP vinegar preparation (WEVEP)...
June 7, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28580185/the-soluble-vegf-receptor-sflt-1-contributes-to-impaired-neovascularization-in-aged-mice
#6
Guangxian Zhao, Xian W Cheng, Limei Piao, Lina Hu, Yanna Lei, Guang Yang, Aiko Inoue, Shinyu Ogasawara, Hongxian Wu, Chang-Ning Hao, Kenji Okumura, Masafumi Kuzuya
The mechanism by which angiogenesis declines with aging is not fully understood. Soluble vascular endothelial growth factor receptor 1 (VEGFR1) form (sFlt1) contributes to endothelial dysfunction in pathological conditions. However, the roles of sFlt1 in ischemia-induced neovascularizationof aged animals have not been investigated. To study aging-related sFlt1 change and its impact on ischemia-induced neovascularization, a hindlimb ischemia model was applied to young and aged mice. Blood flow imaging assay revealed that the blood flow recovery remained impaired throughout the follow-up period...
May 2017: Aging and Disease
https://www.readbyqxmd.com/read/28553563/targeted-delivery-of-flt-morpholino-using-cyclic-rgd-peptide
#7
Hironori Uehara, Santosh Kumar Muddana, Xiaohui Zhang, Subrata Kumar Das, Sai Bhuvanagiri, Jinlu Liu, Yuanyuan Wu, Susie Choi, Lara S Carroll, Bonnie Archer, Balamurali K Ambati
PURPOSE: We previously showed that intravitreal injection of the sFLT morpholino-oligomer (FLT-MO) suppresses laser-induced choroidal neovascularization (CNV) in mice by decreasing the membrane bound form of Flt-1 while increasing the soluble form of Flt-1 via alternative splicing shift. In this study, we examined whether cyclic RGD peptide (cRGD) can promote morpholino-oligomer accumulation in CNV following tail vein injection, and whether systemic cRGD conjugated FLT-MO (cRGD-FLT-MO) suppresses CNV growth...
May 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28551637/17-allylamino-17-demethoxygeldanamycin-induced-changes-in-18-f-fluorothymidine-uptake
#8
Hang Jung Lee, DO Hyung Kim, Seung Jin Lee
The proliferation status of tumor cells can be imaged using [(18)F]fluorothymidine ([(18)F]FLT), which is trapped by cell cycle-dependent thymidine kinase 1 (TK1). Targeting of heat shock protein 90 (HSP90) disrupts multiple client proteins, leading to heterogeneous cell-cycle phenotypes. To investigate whether [(18)F]FLT uptake reflects the growth arrest caused by various mechanisms of HSP90 inhibition, we used HCT116 cells that were arrested at G0/G1 phase, and Hep3B cells at G2/M phase, by the HSP90 inhibitor 17-AAG...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28545284/-expression-profiles-and-clinical-implication-of-plasma-chemokines-in-patients-with-stanford-type-a-aortic-dissection
#9
F D Fan, Z J Xu, Q Zhou, D J Wang
Objective: To explore the plasma chemokines expressions and related clinical implication in patients with Stanford type A aortic dissection (AD). Methods: We retrospectively analyzed the data of 65 patients with Stanford type A aortic dissection, hypertensive patients and 11 healthy subjects admitted in our department from October 2013 to December 2014, they were divided into four groups: NH-CON group (11 healthy subjects), H-AD group (29 AD patients with hypertension), NH-AD group (21 AD patients without hypertension), and H-CON group (14 hypertension patients)...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28494189/increased-placental-sflt-1-but-unchanged-plgf-expression-in-late-onset-preeclampsia
#10
Laura Ehrlich, Alice Hoeller, Michaela Golic, Florian Herse, Frank H Perschel, Wolfgang Henrich, Ralf Dechend, Berthold Huppertz, Stefan Verlohren
OBJECTIVE: To investigate whether differences between late-onset preeclampsia (PE) and intrauterine growth restriction (IUGR) can be explained by differential placental expression patters of sFlt-1, Flt-1, and placental growth factor (PlGF). METHODS: Placental tissues and maternal blood samples from seven patients with PE, five IUGR, and seven age-matched controls were studied for mRNA and protein levels as well as protein localization and expression intensity. RESULTS: Placental PlGF mRNA and protein expression were not altered by placental dysfunction while placental villous trophoblast expression intensity of PlGF was increased...
May 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28478827/mild-anemia-during-pregnancy-upregulates-placental-vascularity-development
#11
A Stangret, M Skoda, A Wnuk, M Pyzlak, D Szukiewicz
The connection between maternal hematological status and pregnancy outcome has been shown by many independent researchers. Attention was initially focused on the adverse effects of moderate and severe anemia. Interestingly, some studies revealed that mild anemia was associated with optimal fetal development and was not affecting pregnancy outcome. The explanation for this phenomenon became a target for scientists. Hemodilution, physiologic anemia and relative decrease in hemoglobin concentration are the changes observed during pregnancy but they do not explain the reasons for the positive influence of mild anemia on a fetomaternal unit...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28429366/analysis-of-transcriptional-activities-of-angiogenic-biomarkers-during-intrauterine-complications-leading-to-preterm-birth
#12
M Rabajdová, R Dudič, P Urban, V Dudičová, P Urdzík, M Mareková
OBJECTIVE: Pre-eclampsia, growth retardation and preterm delivery are the most common reasons leading to increased maternal and perinatal mortality. The increased expression of hypoxia induced factors, such as HIF-1, triggers the overexpression of anti-angiogenic genes. The aim of this study was to determine the transcriptional activity of individual pro- and anti-angiogenic markers (VEGF, HIF-1, sEng, Flt-1, PlGF-1) in maternal blood samples from patients with spontaneous preterm labor, preterm labor in combination with pre-eclampsia and fetal growth restriction in comparison with physiologically terminated pregnancies...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28412217/dalbergia-odorifera-extract-promotes-angiogenesis-through-upregulation-of-vegfrs-and-pi3k-mapk-signaling-pathways
#13
Zhu-Ming Fan, Da-Ying Wang, Jian-Mei Yang, Zhi-Xiu Lin, Ai-Lin Yang, Hua Fan, Min Cao, Su-Yun Yuan, Zong-Jun Liu, Xin Zhou, You-Hua Wang
ETHNOPHARMACOLOGICAL RELEVANCE: The heart wood of Dalbergia odorifera is a Chinese herbal medicine commonly used for the treatment of various ischemic diseases in Chinese medicine practice. AIM OF THE STUDY: In this study, therapeutic angiogenesis effects of the Dalbergia odorifera extract (DOE) were investigated on transgenic zebrafish in vivo and human umbilical vein endothelial cells (HUVECs) in vitro. MATERIALS AND METHODS: The pro-angiogenic effects of DOE on zebrafish were examined by subintestinal vessels (SIVs) sprouting assay and intersegmental vessels (ISVs) injury assay...
April 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28395328/cystic-endometrial-hyperplasia-pyometra-syndrome-in-bitches-identification-of-hemodynamic-inflammatory-and-cell-proliferation-changes
#14
Gisele Almeida Lima Veiga, Ricardo Henrique Miziara, Daniel Souza Ramos Angrimani, Paula Carvalho Papa, Bruno Cogliati, Camila Infantosi Vannucchi
Cystic endometrial hyperplasia (CEH)-pyometra syndrome is one of the most common diseases of noncastrated female dogs. However, determination of etiological mechanisms and differential diagnosis of CEH-pyometra syndrome are undefined. The aim of this study is to compare immunohistochemically the expression of cyclooxygenase-2 (COX-2) inflammatory mediator, Ki-67 antigen proliferation marker, vascular endothelial growth factor (VEGF-A) angiogenesis mediator and its FLT-1 and KDR receptors, and correlate with Doppler velocimetry of uterine artery and endometrial vascularization in bitches with CEH-pyometra syndrome...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28379296/relaxin-treatment-reduces-angiotensin-ii-induced-vasoconstriction-in-pregnancy-and-protects-against-endothelial-dysfunction%C3%A2
#15
Sarah A Marshall, Chen Huei Leo, Jane E Girling, Marianne Tare, Sally Beard, Natalie J Hannan, Laura J Parry
The peptide relaxin has gained considerable attention as a new vasoactive drug, largely through its beneficial therapeutic effects in cardiovascular disease. In this study, we tested the hypothesis that relaxin treatment alleviates systemic vascular dysfunction characteristic of hypertensive diseases of pregnancy. We investigated vascular effects and mechanisms of relaxin action in (i) pregnant relaxin-deficient (Rln-/-) mice with enhanced responses to angiotensin II (AngII) and (ii) arteries pre-incubated ex vivo in trophoblast conditioned media (TCM) to induce endothelial dysfunction...
April 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28360204/assessing-bone-marrow-activity-in-patients-with-myelofibrosis-results-of-a-pilot-study-of-18-f-flt-pet
#16
Laetitia Vercellino, Matthieu-John Ouvrier, Emmanuelle Barré, Bruno Cassinat, Virginie De Beco, Christine Dosquet, Sylvie Chevret, Véronique Meignin, Christine Chomienne, Marie-Elisabeth Toubert, Pascal Merlet, Jean-Jacques Kiladjian
Aim: An emerging non-invasive approach to assess tissue proliferation utilizes the positron emission tomography (PET) tracer 3'-deoxy-3'[(18)F]-fluorothymidine, ((18)F-FLT). To evaluate the diagnostic values of this technique in myelofibrosis, (18)F-FLT PET imaging results were compared with bone marrow histology and bone marrow scintigraphy (BMS), the gold standard techniques in this clinical situation. Materials and Methods: Fifteen patients with histology-proven myelofibrosis (MF) were included consecutively in the study...
March 30, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28357103/vegf-flt-1-and-microvessel-density-in-primary-tumors-as-predictive-factors-of-colorectal-cancer-prognosis
#17
Justyna Zygoń, Mariusz Szajewski, Wiesław Janusz Kruszewski, Robert Rzepko
Angiogenesis in the primary tumor is known to be necessary for tumor progression in adenocarcinomas of the colon. However, whether angiogenesis in the primary tumors of patients with colorectal cancer affects their prognosis has yet to be fully elucidated. The aim of the present study was to assess the association between selected pathoclinical parameters and overall survival of resectable colorectal cancer patients with the expression of angiogenesis-promoting factors, including vascular endothelial growth factor (VEGF) and Fms-like tyrosine kinase receptor (Flt-1), and microvessel density (MVD) in the primary tumor...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28351588/synthesis-and-anti-hiv-activities-of-unsymmetrical-long-chain-dicarboxylate-esters-of-dinucleoside-reverse-transcriptase-inhibitors
#18
Hitesh K Agarwal, Bhupender S Chhikara, Gustavo F Doncel, Keykavous Parang
A series of 11 unsymmetrical dicarboxylate conjugates of dinucleoside reverse transcriptase inhibitors were synthesized. Three dicarboxylic acids, succinic acid, suberic acid and 1,14-tetradecandioc acid, were diesterified with either 3'-azido-2',3'-dideoxythymidine (AZT), 3'-fluoro-2',3'-dideoxythymidine (FLT), 2',3'-dideoxy-3'-thiacytidine (3TC), or 5-fluoro-2',3'-dideoxy-3'-thiacytidine (FTC). The anti-HIV activity of synthesized compounds was evaluated against HIV-1 X4 (IIIB) and R5 (BaL) viral strains in single-round infection assays...
May 1, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28323906/flt-1-gene-polymorphisms-and-protein-expression-profile-in-rheumatoid-arthritis
#19
Agnieszka Paradowska-Gorycka, Anna Sowinska, Andrzej Pawlik, Damian Malinowski, Barbara Stypinska, Ewa Haladyj, Katarzyna Romanowska-Prochnicka, Marzena Olesinska
OBJECTIVES: Inflammation and angiogenesis are a significant element of pathogenesis in rheumatoid arthritis (RA). The FLT-1- triggering factor for production of proinflammatory cytokines-might contributes to inflammation in patients with RA. Association of the FLT-1 polymorphisms with different "angiogenic diseases" suggests that it may be a novel genetic risk factor also for RA. The aim of the study was to identify FLT-1 genetic variants and their possible association with sFLT-1 levels, susceptibility to and severity of RA...
2017: PloS One
https://www.readbyqxmd.com/read/28322131/soluble-flt-1-has-cytotoxic-effects-on-bewo-choriocarcinoma-cells
#20
Michiko Yamashita, Keiichi Kumasawa, Tatsuya Miyake, Hitomi Nakamura, Tadashi Kimura
BACKGROUND: Vascular endothelial growth factor (VEGF) plays a pivotal role in angiogenesis and is overexpressed in many kinds of malignant tumors. Soluble VEGF receptor 1 (sVEGFR-1/ soluble fms-like tyrosine kinase 1 [sFlt-1]) plays a role as an inhibitor of VEGF, and an antitumor effect has been shown in several studies using sFlt-1. Recently, in addition to its antiangiogenic effect, it was reported that sFlt-1 has direct cytotoxicity. MATERIALS AND METHODS: Transfection of sFlt-1 plasmid DNA was performed in the BeWo choriocarcinoma cell line...
January 1, 2017: Reproductive Sciences
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